2018 CHEVROLET VOLT ac system

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Vehicle Care 235
Storing the Tire Sealant andCompressor Kit . . . . . . . . . . . . . 299
Tire Changing . . . . . . . . . . . . . . . . 299
Compact Spare Tire . . . . . . . . . . 305
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . 306
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . 311
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . . . 313
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . 315
Interior Care . . . . . . . . . . . . . . . . . . 320
Floor Mats . . . . . . . . . . . . . . . . . . . . 323
General Information
For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
California Proposition
65 Warning
{Warning
Most motor vehicles, including
this one, as well as many of its
service parts and fluids, contain
and/or emit chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Engine
exhaust, many parts and
systems, many fluids, and some
component wear by-products
contain and/or emit these
chemicals. For more information
go to www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0253
and Jump Starting - North America
0 306 and the back cover.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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236 Vehicle Care
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non-dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non-GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 076.
Vehicle Checks
Doing Your Own
Service Work
{Warning
Never try to do your own service
on high voltage battery
components. You can be injured
and the vehicle can be damaged
if you try to do your own service
work. Service and repair of these
high voltage battery components
should only be performed by a
trained dealer technician with the
proper knowledge and tools.
Exposure to high voltage can
cause shock, burns, and even
death. The high voltage
components in the vehicle can
only be serviced by technicians
with special training.
(Continued)

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Vehicle Care 237
Warning (Continued)
High voltage components are
identified by labels. Do not
remove, open, take apart,
or modify these components.
High voltage cable or wiring has
orange covering. Do not probe,
tamper with, cut, or modify high
voltage cable or wiring.
{Warning
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner’s manual procedures
and consult the service manual
for your vehicle before doing any
service work.
If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the proper service manual, see
Service
Publications Ordering Information
0 351.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Airbag System
Check 077.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0337.
Caution
Even small amounts of
contamination can cause damage
to vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
To open the hood:
1. Turn the vehicle off before opening the hood. If the vehicle
is on, the engine will start when the hood is opened.
See
Electric Mode 0176 and
Extended Range Mode 0177.
2. Pull the release handle with
this symbol. It is below the
instrument panel outboard of
the steering wheel.
3. Go to the front of the vehicleand locate the secondary
release lever under the front

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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240 Vehicle Care
1. Windshield Washer FluidReservoir. See “Adding Washer
Fluid” under Washer Fluid
0 250.
2. Engine Air Cleaner/Filter 0243.
3. Engine Oil Fill Cap. See Engine Oil 0240.
4. Engine Oil Dipstick. See Engine Oil 0240.
5. Engine Cooling Fans (Out of View).
See Cooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or
Cooling System (Power
Electronics and Charger
Modules) 0249.
6. Brake Fluid Reservoir. See Brake Fluid 0252.
7. Electric Drive Unit Fluid Cap.
8. High Voltage Battery Coolant Reservoir and Pressure Cap.
See Cooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or Cooling System (Power
Electronics and Charger
Modules)
0249.
9. Engine Coolant Surge Tank and Pressure Cap.
See Cooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or
Cooling System (Power
Electronics and Charger
Modules) 0249.
10. Remote Positive (+) Terminal. SeeJump Starting - North
America 0306.
11. Power Electronics Coolant Reservoir and Pressure Cap.
SeeCooling System (Engine)
0 245 orCooling System (High
Voltage Battery) 0248 or
Cooling System (Power
Electronics and Charger
Modules) 0249.
12. Engine Compartment Fuse
Block 0262.
13. Remote Negative (−) Terminal. SeeJump Starting - North
America 0306.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0242.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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242 Vehicle Care
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil
depends on both the proper oil
specification and viscosity grade.
SeeRecommended Fluids and
Lubricants 0335.
Specification
Ask for and use engine oils that
meet the dexos1 specification.
Engine oils that have been
approved by GM as meeting the
dexos1 specification are marked
with the dexos1 approved logo. See
www.gmdexos.com.
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
Use SAE 0W-20 viscosity grade
engine oil.
When selecting an oil of the
appropriate viscosity grade, it is
recommended to select an oil of the
correct specification. See
“Specification” earlier in this section.
Engine Oil Additives/Engine
Oil Flushes
Do not add anything to the oil. The
recommended oils meeting the
dexos1 specification are all that is
needed for good performance and
engine protection.
Engine oil system flushes are not
recommended and could cause
engine damage not covered by the
vehicle warranty.
What to Do with Used Oil
Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in the
trash or pouring it on the ground,
into sewers, or into streams or
bodies of water. Recycle it by taking
it to a place that collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on a combination of factors which

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Vehicle Care 243
include engine revolutions, engine
temperature, and miles driven.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
the oil life system to work properly,
the system must be reset every time
the oil is changed.
When the system has calculated
that oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE
OIL SOON message comes on.
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life
system might indicate that an oil
change is not necessary for up to
two years. The engine oil and filter
must be changed at least once
every two years and, at this time,
the system must be reset. Your
dealer has trained service people
who will perform this work and reset
the system. It is also important to
check the oil regularly over the
course of an oil drain interval and
keep it at the proper level.If the system is ever reset
accidentally, the oil must be
changed at 5 000 km (3,000 mi)
since the last oil change.
Remember to reset the oil life
system whenever the oil is changed.
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. To reset the
system:
1. Select REMAINING OIL LIFE on the DIC menu.
2. Press and hold
Vfor several
seconds while the Oil Life
display is active to reset the Oil
Life system.
3. 100% OIL LIFE will be displayed when the oil life
system is successfully reset.
The oil life system can also be reset
as follows: 1. Select REMAINING OIL LIFE on the DIC menu. 2. Fully press and release the
accelerator pedal three times
within five seconds.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not reset. Repeat the
procedure.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the
passenger side of the vehicle. See
Engine Compartment Overview
0 239.
When to Inspect the Engine Air
Filter
For intervals on changing and
inspecting the engine air cleaner/
filter, see Maintenance Schedule
0 327.
How to Inspect the Engine Air
Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Cooling System (Engine)
1. Engine Cooling Fans (Outof View)
2. Engine Coolant Surge Tank and Pressure Cap
{Warning
An underhood electric fan can
start up even when the engine is
not running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan. If the coolant inside the coolant
surge tank is boiling, do not do
anything else until it cools down.
The vehicle should be parked on a
level surface.
The coolant level should be up to
the cold fill line. If it is not, there
might be a leak at the radiator
hoses, heater hoses, radiator, water
pump, or somewhere else in the
cooling system.
{Warning
Do not touch heater or radiator
hoses, or other engine parts.
They can be very hot and can
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving the
vehicle.
If there seems to be no leak, with
the engine on, check to see if the
cooling fans are running. If the
engine is overheating, the fans should be running. If they are not,
the vehicle needs service. Turn off
the vehicle.
Engine Coolant
The engine cooling system in the
vehicle is filled with GM Premix
DEX-COOL engine coolant. See
Recommended Fluids and
Lubricants
0335. The coolant
requires changing at certain
intervals. See Maintenance
Schedule 0327.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating 0250.
What to Use
{Warning
Plain water, or other liquids such
as alcohol, can boil before the
proper coolant mixture will. With
plain water or the wrong mixture,
the engine could get too hot but
(Continued)

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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246 Vehicle Care
Warning (Continued)
there would not be an overheat
warning. The engine could catch
fire and you or others could be
burned.
Use GM Premix DEX-COOL engine
coolant. This mixture:
. Gives freezing protection down
to−37 °C (−34 °F), outside
temperature.
. Gives boiling protection up to
129 °C (265 °F), engine
temperature.
. Protects against rust and
corrosion.
. Will not damage aluminum parts.
. Helps keep the proper engine
temperature.
Caution
Do not use anything other than a
pre-mix of DEX-COOL coolant
that meets GM Standard
GMW3420 and deionized water.
Anything else can cause damage
to the hybrid cooling system
components and the vehicle,
which would not be covered by
the vehicle warranty.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level. Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at or
above the cold fill line, add GM
Premix DEX-COOL engine coolant.
Be sure the cooling system is cool
before this is done. See
Engine
Overheating 0250.
The coolant surge tank is on the
driver side of the engine
compartment. See Engine
Compartment Overview 0239.